On June 16, with the successful blasting of the last section of rock, the Dabie Mountain Tunnel of the Lu'an section of the He (County) Xiang (Yang) Expressway, which is a “throat project”, was passed through in both directions. This across Anhui, Henan Province, the provincial boundary of the exceptionally long tunnel (Anhui section 4312.57 meters / Henan section 2280.2 meters), become the first line to complete the through the kilometer-level tunnel, for the 2026 opening of the entire line to lay the foundation.

In the face of the tunnel through five fault fracture zones, poor stability of the surrounding rock and other world-wide problems, the construction team innovatively adopted the "advance geological forecast + dynamic design and construction" integration technology. Through the deployment of millimeter wave radar, microseismic monitoring system and other digital equipment, to achieve real-time intelligent early warning of construction risks. At the same time, the introduction of hydraulic arch trestle, electric hanging cloth cart and other 18 sets of intelligent equipment, so that the efficiency of single-cycle operation increased by 25%, and ultimately realize the "zero accident" through.

"Now through the tunnel 20 minutes to Henan Mall, no longer need to go around the mountain road." Jinzhai County Tangjiahui Town Sidaohe villagers Wang Deshun calculated an account: the previous delivery of tea to Henan takes 3 hours, the tunnel is expected to reduce logistics costs after the opening of 30%. As Anhui Province, "14th Five-Year" transportation key projects, and Xiang high-speed Lu'an section will end five mountain townships do not have access to high-speed history, to build a connection between western Anhui Province and the south of Henan's four-hour logistics circle of agricultural products.

The relevant person in charge of the Anhui Provincial Transportation Department said that after the completion of the project will directly benefit more than 2 million people in 23 townships along the route, to promote the Dabie Mountain region's cultural and tourism resources and characteristics of agricultural products "to go out", it is expected that each year can be driven by the regional GDP growth of more than 5 billion yuan. At present, the whole line of bridge and tunnel project has been completed 87%, is scheduled to be completed in June 2026 to open to traffic. (This article is from the official website of Jian Dao www.seetao.com. Reproduction without permission is prohibited, otherwise it will be prosecuted. Please indicate Jian Dao website+original link when reprinting.) Jian Dao website strategy column editor/Yang Beihua